All categories

3 years ago

99 points help SHOW YOUR WORK Q+B=13. When B+3=0

Mathematics

2 answers:

belka [17]3 years ago

7 0

Q+B=13. When B+3=0

You have 2 separate equations.

First solve the 2nd equation for B:

B +3 = 0

Subtract 3 from both sides:

B +3 - 3 = 0-3

Simplify:

B = -3

Now we have a value for B, we can replace b with -3 in the first equation and solve for Q:

Q + -3 = 13

Add 3 to each side:

Q + -3 + 3 = 13+3

Simplify:

Q = 16

So you have Q = 16 and B = -3

Georgia [21]3 years ago

4 0

Question

SHOW YOUR WORK Q+B=13. When B+3=0

Answer:

16 + (-3) = 13

Step-by-step explanation:

find b

B + 3 = 0

B = -3

now we have the expression:

Q + (-3) = 13

Q = 13 + 3

Q = 16

check

16 + (-3) = 13

16 = 16

You might be interested in

Help thanks//////////??????????

3241004551 [841]

Answer:

Step-by-step explanation:

At the point where two line cut across, the vertically opposite angles formed are equal. This means that

2x degrees = 78 degrees

Dividing the left hand side and the right hand side of the equation by 2, it becomes

2x/2 = 78/2

x = 39

Checking,

The sum of the angles on a straight line is 180 degrees.

180 - 78 = 102 degrees

2x + 102 = 180

2x = 180 - 102 = 78

x = 78/2 = 39

8 0

3 years ago

Read 2 more answers

Find the balance in an account at the end of 8 years if $6000 is invested at an interest rate of 4.2% that is compounded continu

tester [92]

Answer:

$8016.00

Step-by-step explanation:

I = 6000 × 0.042 × 8 = 2016

I = $ 2,016.00

$2,016.00 + $6,000.00 = 8,016.00

7 0

2 years ago

WILL MARL BRAINLIEST!!!!!!!

Salsk061 [2.6K]

Answer:

Step-by-step explanation:

7 0

3 years ago

Please help don’t get it ASAP

maxonik [38]

Answer:

Option C is correct.

$38 miles$

Step-by-step explanation:

Let x be the distance cover by Michelle

Given:

A circle diameter is 3 miles.

And Michelle biked around the trail 4 times.

We know that

The circumference of a circle.

circumference = $2\pi r$ ----------(1)

where $r=\frac{Diameter}{2}$

$r=\frac{3}{2} \\r=1.5$ miles

Put $\pi =3.14$ and r value in equation 1.

$circumference = 2\times 3.14 1.5$

$circumference = 9.42 mil;es$

The circumference of a circle is 9.42 miles.

And Michelle biked 4 times, that is equal to 4 $\times$ circumference.

$x = 4\times 9.42$

$x = 37.65 miles$ .

That is equal to 38 miles.

Therefore, Michelle biked around 4 trail is 38 miles.

5 0

3 years ago

Need some help with this one please

Airida [17]

Answer: Choice A

y = (-3/4)(x + 4) + 6

=====================================================

Let's go through the answer choices

Choice A is something we'll come back to
Choice B is false because the line does not go uphill as we move from left to right. The graphed line has a negative slope, which contradicts what choice B is saying.
Choice C is false for similar reasons as choice B. The slope should be negative.
Choice D has a negative slope, but the y intercept is wrong. The y intercept should be 3. So choice D is false as well.

We've eliminated choices B through D.

Choice A must be the answer through process of elimination.

------------

Here's an alternative method:

If we started at a point like (0,3) and move to (4,0), note how the slope is -3/4

This is because we've moved down 3 units and to the right 4 units.

m = slope = rise/run = -3/4

We can also use the slope formula m = (y2-y1)/(x2-x1) to see this.

Then we pick on a point that is on the diagonal line. It could be any point really, but the point your teacher used for choice A is (x1,y1) = (-4,6)

So,

y - y1 = m(x - x1)

y - 6 = (-3/4)(x - (-4))

y - 6 = (-3/4)(x + 4)

y = (-3/4)(x + 4) + 6

7 0

3 years ago